﻿/*
The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in
compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/

Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
License for the specific language governing rights and limitations
under the License.
*/
package com.jorritdevries.console.utils
{
	
	/**
	 * Implementation of an assertion function, used when parameters are assumed.
	 * Throws an Error when the assertion fails.
	 * @param expression The expression to evaluate.
	 * @param msg Optional message to be displayed in error.
	 * @author jorrit@jorritdevries.com
	 */
	public function assert(expression:Boolean, msg:String = null):void
	{
		if (!expression)
		{
			var str:String = "Assertion failed!";
			str += msg ? " " + msg : "";
			throw new Error(str);
		}
	}
	
}